Tornado Watch 455

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 455
NWS STORM PREDICTION CENTER NORMAN OK
700 PM CDT WED JUN 4 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF EASTERN IOWA
LARGE PART OF NORTHERN ILLINOIS
PARTS OF NORTHERN INDIANA
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 700 PM
UNTIL 100 AM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST SOUTHWEST OF
MOLINE ILLINOIS TO 50 MILES EAST NORTHEAST OF LAFAYETTE INDIANA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...
WW 448
...
WW 451
...
WW
452
...
WW 453
...
WW 454
...
DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INCREASE IN THE LIFT
ACROSS THE WARM FRONT THRU THE WATCH. WITH VERY MOIST AND
MODERATELY UNSTABLE AIR MASS COUPLED WITH FAVORABLE VEERING SHEAR
PROFILES...SUPERCELLS ARE EXPECTED. DAMAGING WINDS/LARGE HAIL
ALONG WITH POSSIBLE TORNADOES WILL BE ASSOCIATED WITH SUPERCELLS AS
THEY MOVE NEWD ACROSS THE WATCH AREA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25030.
...HALES